Type-writer attachment.



PATENTED MAY l2. 1908. G. J. JESZMANT.

TYPE WRITER ATTACHMENT.

APPLICATION FILED JUNE 15. 1907.

3 SHEETS-SHEET l.

@wmwmo @9W/wm@ No. 887,646. PATENTED4 MAY l2, 1908.

` G. J. JESZMANT.

TYPE WRITER ATTACHMENT.

APPLICATION :FILED JUNE 15, 1907.

3 SHEETS-SHEET 2,

TILE- E ...nu I 7 mz w.

nrw w 10 aumento/r,

Witnzooeo VNo. 887,646. PATENTED MAY 1.2, 1908.

G. J. JESZMANT.

TYPE WRITER ATTACHMENT.

APPLICATION FILED .TUNE 15. 1907.

a SHEETS-SHEET s.

fwarnmw A mW-yn www Vployment of a mechanism for GEORGE '.T. J'ESZMANT, 0F PITTSTON, PENNSYLVANIA.

TYPE-WRITER ATTACHMENT.

Specification vof; Letters Patent.

Patented May 12,/1eo8.

Application filed June 15, 19.07. Serial No. 379,262,

To all whom tt may concern:

Be it known that I, GEORGE J. JEszMANT, a citizen of the United States, residing at Pittston, in the'county of Luzerne' and State of Pennsylvania, have invented new and useful Improvements in Type-Writer Attachments, of 'which the following is a specifica'- tion.

This invention relates to typewriters and more partieularlyto a pedal actuated mechanism forthrowing the shift key or keys for the carriageand to a mechanism for returning the carriage attheend of each line so that no attention is required on the part of the operator and the use of the hands for these purposes is dispensed withf The invention has for one of its objects to improve and simplify the construction and operation of apparatus of the character referred inexpensive to manufacture, thoroughly reliable and efficient in use and designed to serve as an attachment for typewriters in common use.

Another object ofthe invention is'the emreturning the carriage of the typewriter at the end of each line, the mechanism being readily adjustable so that the carriage will return to initial lposition. after the strikingof one key or any number of keys so as to thereby render the easy and convenient,

operation of tabulating and prevent over-running ofthe lines at the f whereby end.

As a further object the invention provides a-carriage returning mechanism including a motor driven shaft and adjustable means between the shaft .and typewriter carriage the latter lcan be returned at any point.

,. With these objects in view and others, as

will appear as the description proceeds, the

invention comprises the variousuovel features of coustructioi'i and arrangement of parts which will be more fully described hereinafter and set forth with j'iarticularity in the claims appended hereto. In the accompanying drawings, which illustrate one of the embodiments of the invention,l-`igure 1 isa partial plan view of a typewriter equipped withthe carriage shuting and returning mechanisms. perspective view of a portion of the carriage returning mechanism. l view of a typewriter stand yshowing the motor for the carriage returningr mechanism. Fig.

to so as to be compara-tively easy and Fig. 2 isa Fig. 3 is a sectional' 4 is a detail sectional view of the ,spring motor for the said mechanism.` Figs. 5, l6 and 7 are transverse sections on lines to t-a, bib, and cc, respectively, of Fig; 4. Fig. 8 is a detailviewof the adjusting device included in the carriage returning mechanism,

whereby the carriagel can'be returned to initialposition after the writing of one or 'more letters or a lineof any desired length.

Similar reference characters are employed t0 designate corresponding parts throughout the several views. j 4

In the'present instance I have elec-ted to illustrate my invention in connection with Aan Oliver typewriter, but it lis to be understood that the principles of the invention are :applicable to any other typewriter and can be embodied as an attachment therefor for the purpose of returning the carriage at the end of each line and desiredvlength to be written.

'Referring to the drawings and more par.- ticularly to Fig. 1, A designates a l typef writer o f which only sufficient is shown to .illustrate the relation of the invention thereto, the typewriterbeing mounted on a suitable stand .designated by B. The typewriter is complete in itself and the carriage returning mechanism as well as the carriage shifting device' are merely attachments so arranged as to permit the typwriter to be used in the ordinary manner if desired without the attachments..I

The carriage returning mechanism comprises a rotatable shaft L that-may be' arranged horizontally or vertically as desired and secured to the shaft is an arm orcrank 2 that has its outer end connected by a link or pitman 3 with a suitable part of the carriage C of the typewriter, as shown in Figs. .1 and 2. The shaft 1 'rotates in a vertical sleeve 4 and on its upper end is provided with a head 5 through which the inner end of the arm 2 extends, there being a clamping screw 6 onth'e head for securing the arm' in adjusted position. lBy shifting the arm so aste bring the hinged joint 7 closer lto-the axis of the shaft l the carriage [can be returneld at an4 early part of its movement,l and vice versa when the joint 7 is moved outwardly from the axis vof the shaft 1. In other words, by' lengthening or shortening-the 'arm 2 a line of any desired length can be written. 3 is hingedly connected at 8'l with provided 4on a sldelO that is an arm 9 connected `with the .rear bar 11 of the carriage C. The

The link shaft 1 can be actuated by a motor of any 'approved design but for the purpose of line, the usual spacing mechanism serving to V manner.

turn the paper carrying roller inthe usual The return of the carriage is effected by the uncoiling of the spring of the motor and as soonas Athe end of Va line is reached, the` crank 2 passes its inner dead center. and `1s quickly movedA through one hundred` and eighty degrees by the spring, thus causing a'quick return of the carriage.

f During the last part of the return stroke, the

speed of the carriage is gradually diminished from maximum to zero until the crank reaches its outer dead center, and the ad'- `vantage of this is that thecarriage is brought to rest without shock. Y p

The motor comprises a helical spring 12 as shown in Figs. 4 and 6 has its inner en attached to a sleeve 13 pinned to the shaft 1 and its outer end attached to a V,drum or casing 14 by means of an arcuate plate 15 riveted at its center as indicated at 16 to the inside of the casing, the outer extremity of Athe spring being bent into a hook 17 that en'- gages one of the extremities of the member 15. On the top side of the drum 1'4 are spring pressed p'awls 18 that engage a ratchet 19 secured, on the lower end of the sleeve 4, which latter is clamped to the top 20 of the stand B so as to be held against rotation with the drum 14. The drum can be turned in any suitable manner for winding up the spring 12 and during the winding operation the pawls 18 pass freely overthe teeth of the ratchet 19. The unwinding of the spring moves 'the carriage of the typewriter in both Y directions and the forward movement of the carriage is of course controlled by the usual escapement device, whereas the return stroke of the carriage is relatively rapid since the s ring can unwind during the return stroke.

o wind the s ring 12 a foot actuated device is employed, t ie same comprising a drum 21 around which winds a chain or other flexible element 22, the chain passing over 'a pulley "23 in a bracket 24.0n the underside of the stand top 20 and the extremity of the chain 1s attached to the pedal 25 suitably arranged onthe standl The drum 21 contains a spring 26.that has its inner end secured to a fixed sleeve 27 and its outer end suitably attached on the bottom of the drum to the drum so that the pedal 25 will be returned to normal position after being depressed. On the drum 26 isa ratchet 28,

with which coperate spring pressed pawls 29 14. By depressing the pedal 25 the chain 22 unwinds from the drum 21 and turns the latter, thereby winding the spring 26 and also winding the spring 12 through the ratchet mechanism beJ tween the drums. By unwinding, the spring 26 returns the drum so as to wind the chain and raise the pedal. The drum 14 is held from turning with the drum 21 during the winding movement thereof by reason of the pawls 18 engaging the ratchet 1,9. By depressing the pedal 25 a suitable number of times the spring 12 can be fully wound to op- `crate for any desired period. The sleeve 27 is secured by a key 29', Fig. 4, to a bracket 30 on the bottom of the stand top 20, and this sleeve serves to form a bearing for the lower end of the shaft 1.

Inl practice, the carriage returning mechanism is applied to the stand of the machine and connected with a suitable part of the car'- riage,v it being understood that the usual spring mechanism for feeding the carriage is removed from the typewriter since the motor of the. carriage returning attachment takes' the place of the usual carriage moving spring. After the motor is energized the typewriter is `ready for use and the operator can without any attention being require on the art of the operator to return the carriage. As the shaft- 1 turns under the power of the motor the carriage is fed step by step under the control of the escapement and as the arm or crank 2 moves beyond its dead lcenter at the end of the'line or movement ofthe carriage the motor suddenly acts to quickly return the carriage. turn movement of the carriage the spacing mechanism is brought into play to turn the paper roll of the typewriter so that the next line can be written. l From the foregoing description taken in connection with the accompanying drawings the advantages of the construction and of the method of o eration will be readily apparent to those skilled in the art to which the invention appertains, and while I have described the principle of operation of the invention together with the apparatus which I now consider toY be the best embodiment thereof I ratus shown is merely illustrative and that such changes may be made when desired, as are within the scope of the claims.

Havin thus fully described the invention, what is c aimed 'as new is 1. The combination of a typewriter including a carriage, with a forward feed and quick return drivlng mechanism, said mechanism including a crank arm, a link connecting the crank arm with the carriage and of such length that the crank is adjacent either dead center at the end of each stroke of the carriage, and means for operating the crank..

2. The combination ofa typewriter including a carriage, with a mechanism for driving the carriage forwardly during the writing operation and returning the carriage automatically when a line of writing is completed, said typewrite l.

desire to have it understood that the appa-v ccompanymg the remechanism Iincluding avrotatable element, a connection between the shaft and carriage for moving the latter backwardly and l'orwaidly during each rotation of the shalt, and

a motor connected with the shaft for driving.

the latter in one direction'ouly.

The combination of a typewriter including a carriage, with a mechanism for automatically returning the carriage at the end ol each line, said mechanism including a shaft,

la crank .on the shaft and arranged to makeva complete turn for the forward and backward movement of the carriage, a link between the crankvand carriage, and means acting on the shaft for quickly returning the carriage when the lat-ter has reached the endof a line.

i I 4. `The combination of a typewriter'ineluding a carriage, with fa shaft rotatable in one direction only, connecting means between the shaft and carriage lor positively driving the latter in'botli directions vby one revolution of the shaft, and an adjustable device y included in said means for varying the length la l -an adjustable crank and pitinan connection 35,

of movement of the carriage.

5. The combination of a type-writer inc-ludin'g a carriage, a rotatable shaft, a crank and pitman Vconnection between the shaft and. carriage, means for -Narying the ell'ective length of the crank to change the range of movement of the carriage, and a motor for rotating the shaft.

.6. The combination 'i va typewriter includinga carriage, with a rotatable element,

between' the shaft and carriage, for moving the'latter in both directions, a motor for the i shaft, and means for energizing the motor.

., 7. The combination of a typewriter including a carriage, with a rotatable shaft, an adjustable mechanism between the shaftl andl carriage for positively moving thelatter in both directions, a motor for the shaft, and a iootA actuated device for energizing the motor.

l 8. The combination of a typewriter including a carriage, with an attachment for actuating the carriage in both directions, said attachment including a motor, and adjustable means attached to the carriage an; motor .for va ing the stroke of the carriage.

9. T e combination of a typewriter'including a carriage, with an automatic mechanism for returning the carriage,` said mechanism comprising a rotatable shaft, an adjustl able connection between the shaft and carriage for moving the latter in both directions,

` a spring motor for rotating the shaft in one direction only, a ratchet mechanism associated with the motor, and a step bystep device for winding the motor.

` writei', with a motor mounted underI the top of the stand, a shaft rising from the stand and connected with the motor to be driven thereby, and mechanism positively connected with the shaft and carriage for operating the latter. l l

l2. The combination of a typewriter including a carriage, a motor mounted inde-' pendently of the typewriter, a sh'af t driven in one direction by the motor, and mechanism between the shaft and carriage 'for moving the latter back and forth by the rotation of the shaft in one direction. j

13. The combination of a typewriter liavling a carriage adapted to be controlled on its forward movement by an escapement, with a motor, and mechanism including ashaft attached to the' motor and to4 the carriage for cooperating with the escapement for driving the carriage forwardly step bystep (hiring the first half revolution of the shaft and for quickly returning the carriage during the second half revolution of the shaft after thr carriage reaches the end of its forward stroke.

14. The combination of a t pewriter including a carriage, an element fiinvedly connected with the carriage, a'rotatabe shaft, a

member ,I hingedly connected with the ele-,

ment, a crank on the extremity of the shaft, means for adj ustably connecting the member with the crank, and a motor arranged to drive the shaft in one direction for moving the carriage positiyely in both directions.

15. The combination of a typewriter in- ,cluding a carriage, a link connected therewith, a-sha'ft, a crank on the shaft, a member l adjustably connected with the crank, 4a scale onvthe member for ascertaining the adjustment, a hinged connection between the member and link, and amotor connected with the shaft for rotating the same. l

In testimony whereof, I aiiix my signature in presence of two witnesses.

GEORGE J. .n isZMANT.

Witnessesz CHATTIN BRADWAY, DANL W. GALL. 

